X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=exercises%2Fassignment5_answers.mdwn;h=a1dfae79f228347efbdc2715fc07e6446d3c05d8;hp=de9161840fb748f7d0632aa82ccff99d779423a8;hb=032eed9c0f02ad8b36cb921735496f6d20ea3d65;hpb=2d9654c7eb13ddda627147563b2e937c67c7b8e3

diff --git a/exercises/assignment5_answers.mdwn b/exercises/assignment5_answers.mdwn
index de916184..a1dfae79 100644
--- a/exercises/assignment5_answers.mdwn
+++ b/exercises/assignment5_answers.mdwn
@@ -500,8 +500,8 @@ type `Bool`.
         or ≡ λp:Bool. λq:Bool. p [Bool] true q
 
     When I first wrote up these answers, I had put `(q [Bool])` where I now have just `q` in the body of `and` and `or`. On reflection,
-    this isn't necessary, because `q` is already of that type. But as I learned by checking these answers with Pierce's evaluator, it's
-    also a mistake. What we want is a result whose type is `Bool`, that is, `∀α. α -> α -> α`. `(q [Bool])` doesn't have that type, but
+    this isn't necessary, because `q` is already a `Bool`. But as I learned by checking these answers with Pierce's evaluator, it's
+    also a mistake. What we want is a result whose type _is_ `Bool`, that is, `∀α. α -> α -> α`. `(q [Bool])` doesn't have that type, but
     rather the type `Bool -> Bool -> Bool`. The first, desired, type has an outermost `∀`. The second, wrong type doesn't; it only has `∀`s
     inside the antecedents and consequents of the various arrows. The last one of those could be promoted to be an outermost `∀`, since
     `P -> ∀α. Q ≡ ∀α. P -> Q` when `α` is not free in `P`. But that couldn't be done with the others.